Author
James R.F. Allen
Bio: James R.F. Allen is an academic researcher from Karolinska Institutet. The author has an hindex of 2, co-authored 2 publications receiving 274 citations.
Papers
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TL;DR: The simple β-carbolines are presented as a distinct group of alkaloids displaying structural modification of three basic ring systems and aspects of their metabolism, pharmacological properties and taxonomic significance are briefly summarized.
253 citations
TL;DR: In this paper, a procedure for the identification and quantification of IAA in plant tissues by GC/MS analysis of the N-heptafluorobutyryl ethyl ester was described.
28 citations
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TL;DR: The levels of DMT and beta-carbolines found in the ayahuasca samples examined in the present study were an order of magnitude greater than the levels reported in a previous study, which indicated that their effects in combination are additive, rather than synergistic or antagonistic.
329 citations
TL;DR: Ayahuasca is a hallucinogenic beverage that is prominent in the ethnomedicine and shamanism of indigenous Amazonian tribes as discussed by the authors and is used as a sacrament by several syncretic churches.
286 citations
TL;DR: The enantioselective oxidative C-H functionalization of tetrahydroisoquinoline derivatives is achieved through the merger of photoredox and asymmetric anion-binding catalysis and introduces a potentially general approach to asymmetric transformations in oxidative photocatalysis.
Abstract: The enantioselective oxidative C–H functionalization of tetrahydroisoquinoline derivatives is achieved through the merger of photoredox and asymmetric anion-binding catalysis. This combination of two distinct catalysis concepts introduces a potentially general approach to asymmetric transformations in oxidative photocatalysis.
231 citations
TL;DR: The antimicrobial activity of two cyanobacterial exometabolites, norharmane (9H-pyrido(3,4-b)indole) and 4,4'-dihydroxybiphenyl, was determined in suspension assays and the natural function as allelopathic chemicals and a possible applicability as antifouling agents or leads for the development of new antIFouling chemicals are discussed.
223 citations
TL;DR: The literature data on levels of norharman and harman in fried meat and fish, meat extracts, alcoholic drinks, and coffee brews is summarized to indicate that inhalative exposure leads to a rapid increase in plasma levels and high bioavailability of norHarman and Harman and there are indications that sublingual absorption may increase dietary uptake of beta-carbolines.
198 citations